Improvement in tire-tighteners



YN AI..

UNITED STATES PATENT QEEIO'E.

. EESTUS T. STONE, OE GEEENEIELD, wI'ScONSIN.

IMPROVEMENT IN TIRE-TIGHTENERS.

Speoication forming part of Letters Patent No. [90,166. dated May 1,1877; application led March 16, 1877.

To all whom it may concern Be it known that I, FESTUs T. STONE, of

. Greenfield, in the county of Milwaukee and State of Wisconsin, haveinvented certain new and useful Improvements in Tire-Tighteners and I dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it'pertains to make and use the same, reference being had to theaccompanying drawing, andfto the letters of reference marked thereon,which form a part of this specitication.

My invention relates to that class of tools used to tighten the tires ofwagon-wheels two and one-half inches, as shown in Fig. 3.V l The ends BB are eccentric to the semieircular in section-bearings G C. Thebearings C C are designed to tit projections H H, Fig. 2, which form thefulcrum for the lever. D is a U-shaped clamp, formed as shown in thedrawing. It is provided near its open end with hooked lugs, that engagein grooves near the edge of jaw Gr, as shown inFig.2, and with thescrewE at its closed end.v Jaws FV aid Gr ar'e concaved incross-section, so as to t the spoke of the wheel; F is provided with aprojection, forming a bearing for E.

My improved tire-tightener operates as follows: The jaws F Gr are placedon opposite sides of the spoke to be operated upon, as shown in Fig. l,and clamp D is adjusted thereto, as shown in Fig. l. The lever A isplaced with the bearing C C upon H H, as shown in Fig. 1, witheccentrics B B touching the under surface of the felly. rlhe clampshould be tightly fastened by means of screw E, and if there is dangerof injuring the spoke a piece of leather or paper can be placed betweenthe spoke and the jaws. By depressing the outward end of the lever theeccen-l whole implement is compact, light, and stron g, l

and capable ot speedy adjustment.

I am aware that jaws 'and clamps have been used for the same ends assought by me. I

do not claim the same, broadly 5 but I claiml. The lever A, providedwith the bifurcation shown, and the eccentrics B B and bearings() C,substantially as specified. Y

2. The combination of lever A, jaws F and G, constructed withroundpivotal projections H H, and clamp D, constructed as described, andprovided with screw E, as and for the purposes specified.

In testimony that l claim the foregoing as my own I affix my signaturein presence of two witnesses.

EESTUS T.. STONE.

